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Experiment: EG4, 2016
Spokespersons: Xiaochao Zheng
Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
No publications available for this experiment
Quantity measured: ALU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none
| Q2 : | 0.0593 GeV2 | |
|---|---|---|
| W : | 1505 GeV | |
| ε : | 0.881 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.0882 |
|
Select data slice:
cos(θπ+) = |
Observable quantity measured (Y axis): ALU,
Parameter (X axis): φ(π+), degrees |
Click here to get data in text file, delimited with tabs.
Measured data:
| cos(θπ+) |
φ(π+),
degrees |
ALU | Stat. error | Syst. error |
|---|---|---|---|---|
| 0.15 | 30 | -0.2772 | 0.2547 | 0.0305 |
| 0.15 | 330 | -0.2622 | 0.2684 | 0.0305 |
| 0.25 | 42 | 0.5257 | 0.2705 | 0.0318 |
| 0.25 | 54 | 0.1779 | 0.2195 | 0.0302 |
| 0.25 | 66 | 0.1623 | 0.1946 | 0.0302 |
| 0.25 | 78 | 0.3385 | 0.2093 | 0.0308 |
| 0.25 | 282 | 0.1733 | 0.2102 | 0.0302 |
| 0.25 | 294 | 0.0887 | 0.2021 | 0.0301 |
| 0.25 | 306 | 0.0283 | 0.2237 | 0.03 |
| 0.25 | 318 | -0.1939 | 0.2577 | 0.0302 |
| 0.25 | 330 | 0.2614 | 0.266 | 0.0305 |
| 0.35 | 18 | 0.4683 | 0.1937 | 0.0314 |
| 0.35 | 30 | -0.065 | 0.2411 | 0.03 |
| 0.35 | 42 | -0.057 | 0.2651 | 0.03 |
| 0.35 | 54 | 0.1607 | 0.2847 | 0.0302 |
| 0.35 | 66 | 0.1743 | 0.1625 | 0.0302 |
| 0.35 | 78 | -0.2674 | 0.1421 | 0.0305 |
| 0.35 | 90 | 0.0037 | 0.2095 | 0.03 |
| 0.35 | 102 | 0.3545 | 0.2578 | 0.0308 |
| 0.35 | 270 | 0.2086 | 0.1575 | 0.0303 |
| 0.35 | 282 | -0.1049 | 0.1511 | 0.0301 |
| 0.35 | 294 | -0.0017 | 0.1506 | 0.03 |
| 0.35 | 306 | 0.0429 | 0.2029 | 0.03 |
| 0.45 | 66 | -0.2915 | 0.1893 | 0.0306 |
| 0.45 | 78 | -0.0118 | 0.14 | 0.03 |
| 0.45 | 90 | 0.0751 | 0.1603 | 0.03 |
| 0.45 | 102 | 0.1163 | 0.2106 | 0.0301 |
| 0.45 | 114 | 0.4708 | 0.207 | 0.0314 |
| 0.45 | 126 | 0.2928 | 0.2119 | 0.0306 |
| 0.45 | 222 | 0.4029 | 0.2608 | 0.0311 |
| 0.45 | 246 | 0.0495 | 0.2603 | 0.03 |
| 0.45 | 258 | 0.0181 | 0.1984 | 0.03 |
| 0.45 | 270 | 0.381 | 0.149 | 0.031 |
| 0.45 | 282 | -0.0437 | 0.1354 | 0.03 |
| 0.45 | 294 | -0.079 | 0.1463 | 0.03 |
| 0.45 | 306 | 0.0804 | 0.2466 | 0.03 |
| 0.45 | 318 | -0.1895 | 0.2659 | 0.0302 |
| 0.45 | 330 | -0.4498 | 0.2149 | 0.0313 |
| 0.55 | 66 | 0.054 | 0.2319 | 0.03 |
| 0.55 | 78 | -0.2506 | 0.1662 | 0.0304 |
| 0.55 | 90 | 0.2048 | 0.1759 | 0.0303 |
| 0.55 | 102 | -0.3339 | 0.1851 | 0.0307 |
| 0.55 | 114 | -0.1088 | 0.1696 | 0.0301 |
| 0.55 | 126 | 0.1966 | 0.1717 | 0.0303 |
| 0.55 | 138 | 0.2291 | 0.1988 | 0.0303 |
| 0.55 | 150 | 0.0087 | 0.2391 | 0.03 |
| 0.55 | 198 | 0.0938 | 0.2674 | 0.0301 |
| 0.55 | 210 | -0.2903 | 0.2021 | 0.0306 |
| 0.55 | 222 | 0.1913 | 0.1992 | 0.0302 |
| 0.55 | 234 | -0.0073 | 0.1817 | 0.03 |
| 0.55 | 246 | -0.129 | 0.1922 | 0.0301 |
| 0.55 | 258 | -0.0455 | 0.193 | 0.03 |
| 0.55 | 270 | -0.0203 | 0.1558 | 0.03 |
| 0.55 | 282 | -0.1322 | 0.1447 | 0.0301 |
| 0.55 | 294 | 0.1854 | 0.207 | 0.0302 |
| 0.55 | 306 | 0.2688 | 0.3052 | 0.0305 |
| 0.65 | 66 | -0.1755 | 0.1934 | 0.0302 |
| 0.65 | 78 | -0.0204 | 0.2306 | 0.03 |
| 0.65 | 90 | -0.2282 | 0.201 | 0.0303 |
| 0.65 | 102 | 0.0254 | 0.1878 | 0.03 |
| 0.65 | 114 | 0.0256 | 0.1484 | 0.03 |
| 0.65 | 126 | 0.1381 | 0.1455 | 0.0301 |
| 0.65 | 138 | 0.0426 | 0.173 | 0.03 |
| 0.65 | 150 | 0.0876 | 0.2109 | 0.0301 |
| 0.65 | 162 | 0.2111 | 0.2557 | 0.0303 |
| 0.65 | 186 | 0.2235 | 0.2466 | 0.0303 |
| 0.65 | 198 | -0.1591 | 0.1897 | 0.0302 |
| 0.65 | 210 | 0.1702 | 0.1661 | 0.0302 |
| 0.65 | 222 | 0.0361 | 0.1649 | 0.03 |
| 0.65 | 234 | 0.1084 | 0.1581 | 0.0301 |
| 0.65 | 246 | -0.3025 | 0.162 | 0.0306 |
| 0.65 | 258 | -0.211 | 0.1546 | 0.0303 |
| 0.65 | 270 | -0.0159 | 0.1775 | 0.03 |
| 0.65 | 282 | 0.0281 | 0.205 | 0.03 |
| 0.65 | 294 | 0.1513 | 0.1796 | 0.0302 |
| 0.65 | 306 | 0.0777 | 0.211 | 0.03 |
| 0.75 | 66 | 0.0795 | 0.2074 | 0.03 |
| 0.75 | 78 | -0.0019 | 0.1912 | 0.03 |
| 0.75 | 90 | 0.2318 | 0.261 | 0.0304 |
| 0.75 | 114 | 0.0152 | 0.1625 | 0.03 |
| 0.75 | 126 | 0.046 | 0.1481 | 0.03 |
| 0.75 | 138 | 0.1409 | 0.1667 | 0.0301 |
| 0.75 | 150 | 0.3328 | 0.2366 | 0.0307 |
| 0.75 | 162 | 0.177 | 0.2218 | 0.0302 |
| 0.75 | 186 | 0.2512 | 0.2099 | 0.0304 |
| 0.75 | 198 | -0.202 | 0.1768 | 0.0303 |
| 0.75 | 210 | -0.1476 | 0.1394 | 0.0301 |
| 0.75 | 222 | 0.2646 | 0.1476 | 0.0305 |
| 0.75 | 234 | -0.0648 | 0.1371 | 0.03 |
| 0.75 | 246 | 0.204 | 0.1602 | 0.0303 |
| 0.75 | 258 | -0.028 | 0.2036 | 0.03 |
| 0.75 | 270 | -0.0802 | 0.2556 | 0.03 |
| 0.75 | 282 | 0.1126 | 0.1529 | 0.0301 |
| 0.75 | 294 | 0.0502 | 0.174 | 0.03 |
| 0.85 | 90 | -0.0719 | 0.2245 | 0.03 |
| 0.85 | 102 | 0.0753 | 0.1901 | 0.03 |
| 0.85 | 114 | 0.0519 | 0.1943 | 0.03 |
| 0.85 | 126 | 0.1603 | 0.2132 | 0.0302 |
| 0.85 | 138 | 0.154 | 0.2079 | 0.0302 |
| 0.85 | 150 | 0.2407 | 0.2485 | 0.0304 |
| 0.85 | 198 | -0.1607 | 0.2046 | 0.0302 |
| 0.85 | 210 | -0.0257 | 0.1836 | 0.03 |
| 0.85 | 222 | 0.2061 | 0.1558 | 0.0303 |
| 0.85 | 234 | 0.0194 | 0.1424 | 0.03 |
| 0.85 | 246 | 0.019 | 0.1627 | 0.03 |
| 0.85 | 258 | 0.2624 | 0.1687 | 0.0305 |
| 0.85 | 270 | -0.188 | 0.2404 | 0.0302 |
| 0.95 | 114 | -0.2398 | 0.2626 | 0.0304 |
| 0.95 | 126 | 0.2407 | 0.2405 | 0.0304 |
| 0.95 | 210 | -0.2047 | 0.2028 | 0.0303 |
| 0.95 | 222 | 0.3255 | 0.2452 | 0.0307 |
| 0.95 | 234 | -0.1247 | 0.1957 | 0.0301 |
| 0.95 | 246 | 0.0389 | 0.2321 | 0.03 |
| 0.95 | 258 | -0.1419 | 0.2773 | 0.0301 |